Morpholine → 6,6-Dimethyl-8-(1-oxetan-3-yl-piperidin-4-yl)-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile

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Reaction Steps

With the same condition as the method for synthesizing the Compound B3-32 (morpholine (6 μl, 1.5 eq.) and sodium triacetoxy borohydride (81 mg, 2.0 eq.) were added to THF (1 ml) solution of the Compound B2-29: 8-formyl-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile (30 mg, 0.095 mmol), and stirred at room temperature for 1 hour. The reaction solution was filtered to remove insoluble matters. The residues obtained after concentration under reduced pressure were purified by high performance liquid chromatography to obtain the Compound B3-32 (6,6-dimethyl-8-morpholin-4-yl methyl-11-oxo-6,11-dihydro-5H-benzo carbazole-3-carbonitrile) (19 mg, 50%)), the title compound was synthesized from the Compound B3-13-2 and oxetan-3-one.

Provenance & Evidence